Public water system · CT0869121
ActiveScwa, Seven Oaks (Oak)
At a glance
Scwa, Seven Oaks (Oak) (PWSID CT0869121) is an active community water system in New London County, Connecticut. It reports serving 26 people through 13 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in March 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
26
Service connections
13
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Scwa, Seven Oaks (Oak) compare with other water systems in New London County?
By EPA's size categories, Scwa, Seven Oaks (Oak) is a very small system (500 people or fewer). New London County has 394 active public water systems. Its population served is well below the county average of 532 people per system, and accounts for less than 0.1% of the 209,444 people reported by systems filed under the county. Across Connecticut, the 2,363 active systems average 1,247 people each. Nationally, the average active community water system reports serving 6,703 people, so Scwa, Seven Oaks (Oak) is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Connecticut has 481 active community water systems, 20% of the state's 2,363 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,263 Connecticut systems (96%) list groundwater as their primary source.
Who owns and regulates Scwa, Seven Oaks (Oak)?
EPA lists Scwa, Seven Oaks (Oak) as owned by a local government. The CT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 64 of the 394 active systems in New London County (16%) are also owned by a local government.
Does Scwa, Seven Oaks (Oak) have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in March 2016. The violations listed here began between September 2015 and March 2016. By type: 2 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 2 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2016-03-31 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2015-09-29 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
All 2 violations in EPA's records, newest first. Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Scwa, Seven Oaks (Oak): frequently asked questions
Who runs Scwa, Seven Oaks (Oak)?
Scwa, Seven Oaks (Oak) (PWSID CT0869121) is a community water system owned by a local government. It is regulated by the CT state drinking water program.
How many people does Scwa, Seven Oaks (Oak) serve?
Scwa, Seven Oaks (Oak) reports serving 26 people through 13 service connections in New London County, Connecticut.
Where does Scwa, Seven Oaks (Oak) get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Scwa, Seven Oaks (Oak) have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in March 2016. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Scwa, Seven Oaks (Oak)'s water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 2 violations for this system; none is health-based, and the most recent began in March 2016. For current results, consult the system's annual water quality report, EPA ECHO, or the CT state drinking water program.
Where can I find Scwa, Seven Oaks (Oak)'s water quality report?
As a community water system, Scwa, Seven Oaks (Oak) must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in New London County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Norwich Public Utilities | New London | 36,163 | Community | Surface water |
| Groton Utilities | New London | 30,200 | Community | Surface water |
| New London Dept. of Public Utilities | New London | 27,620 | Community | Surface water |
| Waterford Wpca | New London | 16,578 | Community | Purchased surface water |
| East Lyme Water & Sewer Commission | New London | 15,245 | Community | Purchased surface water |
| Aquarion-Mystic | New London | 10,788 | Community | Surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Scwa, Seven Oaks (Oak), PWSID CT0869121, Connecticut”, https://aquacensus.com/water-systems/connecticut/scwa-seven-oaks-oak-ct0869121 (data as of October 1, 2026).